A cancel transaction button on pending transactions should be implemented.
It constructs a new transaction with higher tx fee and uses the first input boxes belonging to an own wallet address configured within the app, covering the tx fee amount, to send it back to itself.
[x] Implement logic to build a cancel transaction as outlined above
[x] Add cancel button to transaction information screen (Android) that informs the user about the implications, calls the cancel transaction builder and navigates to the confirm transaction screen. The button is shown when there is an input box belonging to the current wallet/address
A cancel transaction button on pending transactions should be implemented.
It constructs a new transaction with higher tx fee and uses the first input boxes belonging to an own wallet address configured within the app, covering the tx fee amount, to send it back to itself.